Heating and condensing feed-pump.



No. 764,826. PATENTED MAB.. 15, 1904. W. TATE.

HEATING AND GONDENSING FEED PUMP.

APPLICATION FILED NOV. 27, 1903.

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UNrren STATES Iatented March 1.5, 1904 WILLIAM TATE, OF GREENSBORO, NORTH CAROLINA.

HEATING AND CONDENSING FEED-PUMP.

SPECIFICATION forming part of Letters Patent No. 754,826, dated March 15, 1904.-

Application filed November 27, 1908. Serial No. 182,801. (No model.) l

To all whom it 11i/ay concern:

Be it known that I, WILLIAMv TATE, a citizen of the United States, residing at Greensboro, in the county of Guilford andState of North Carolina, have inventeda new and Improved passage through the heating means, into av steam-boiler or a storage-tank, from which it may be conveyed and used according to conditions and the purpose of its use.

rIhe invention consists of an attachment of the character stated whereby induced or forced water is more effectively heated by the return water or steam in a heating system, exhaust or low-pressure steam, or the water of condensation from any steam-power plant.

More specifically stated, the invention consists of a peculiarly-constructed attachment of the character stated, specially adapted for use with double-acting pumps, though it may be modified, adapting it to be used with singleacting pumps, without departing from its broad conception or embodiment as invented by me.

inthe accompanying drawing, forming a part of this speciiication, the view is in illustration of a vertical section taken through the whole apparatus, including the inlet connections, the outlet or discharge openings being also indicated. f

In the preferred embodiment of my invention I employ a pump-cylinder A, having therein a suitable piston B. The pump-cylinder is suitablyV cut away, adapted for receiving a casing O, the casing being secured in place by bolts or other approved and Wellknown means.

In the casing C, I provide upper chambers D D, communicating, respectively, through passage-ways E E with opposite ends of the pump-cylinder, as shown. A lower and elongated chamber F is also provided in the casing C, having therein a suitable discharge-opening Gr. In the chambers D D', I arrange suitable upwardly-seating and yielding valves D2 D3 and also in the chamber F similar yielding and upwardly-seating valves F/ F2. All the valves above mentioned may be supported on depending pins H and yieldingly held by springs I, closing the respective openings .I J K K' in the upper sides of the chambers D D' F.

I would have it understood that I do not delsire to be limited in the use of my invention to the relative location of the valves and chambers as shown, since they may be modified and adapted for downwardly-seating valves by those skilled in the art.

Upon the casing O, I arrange and secure by bolts or othery means an extension L, having an inner chamber M, reduced at N and downwardly enlarging from N, as indicated at O.

In the chamber M the feed-water is heated7 as will appear further on. P denotes a water-chamber having screwthread support on the upper end of the eXten sion L, the said chamber being adapted for adjustment whereby thewater-spiaying passage Q is regulated, and it may be secured as adjusted by a locking-collar R.

S denotes the water-inlet, and T the steam and hot-water inlet. It will be noticed that the water-inlet S is extended down to near the bottom of the water-chamber P and that it may be adjusted for regulating the inflow.' The water-chamber P and pump-cylinder A may be provided with washout-plugs U, as

shown.

It will be understood that the space M in the extension L forms the main suction-chamber and that the water to be heated is sprayed therein with force, according to the more or less pressure on the water in the surrounding water-chamber and the degree of opening Q, which may-be regulated by adjusting the water-chamber up or down 0n the vscrew-threaded portion of the extension L, thereby spacingits upper end more or less from the inner upper side ofthe water-chamber, as will be understood.

In the use of my invention upon reciprocationof the piston B suction is created down through the upper valves and the feed-water heated, as I will now describe. Upon move- IOO ment of the pump-piston, as indicated by the arrow, suction is created down through the valve D2 and passage E from the main inlet or suction chamber M, where steam or hot water is entered through the inlet T. The feed-water may be forced into the chamber M in the form of spray or allowed to flow therein, as described, or according to pressure on the water-supply.

It is apparent that as the feed-water enters the chamber M suction produced therein and on the steam and hot-water inlet will effect improved heating of the feed-water and condensing of the steam. The enlarged upper end of the chamber M provides expanding space for the entering steam, and its contracted portion serves to force the steam and water together before reaching the upper set 'of valves.

The operation of the pump and valves will be understood. .I may say, however, that when the piston is movingas indicated by the arrow the water will be drawn into its cylinder through the valve D2 and passage-way E. Upon reverse movement of the piston the Valve D2 will be seated and the valve F unseated. In this position of the valves men-` tioned water will flow into the chamber F and during the reverse movement of the piston be forced therefrom through the dischargeopening G. Movement of the piston in direction indicated by the arrows will effect operation of the valves D3 and F2 the same as the operation of the valves D2 and F', whereby upon working of the piston back and forth a continuous iiow of heated water is discharged through the opening G in the chamber F.

The main idea involved in my invention is the special means whereby the feed-water is heated. The water-conveying means to the chamber P may be connected to the lower side of said chamber, and any suitable form or type of pump and valves may be used. rIhe latter may be located on top of their chambers and seat downwardly simply by providing a suitable passage-way from the suction chamber down the Vside of the valve-chambers and leading to the lower set of valves. In the modified form just described, obviously the chamber F would be uppermost.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. Inafeednvaterheater,andincombination, a pump, a connected chamber, the chamber being divided into compartments, having communicating passage-waysV with the pump, valves in the compartments, a heating and condensing chamber communicating with the pump, through the said valves and compartments, a water-space surrounding the said heating and condensing chamber, in open communication therewith through a reduced passageway, steam and hot-water conveying means, to the said heating and condensing chamber,and water-conveying means leading into the said water-chamber, substantially as described.

2. In combination with a double -acting pump, an extension having an inner heating and condensing chamber, a water-chamber on the said extension, communicating with the said heating' and condensing chamber through a passage-way, one of whose walls is adjust able with respect to the other, steam and hotwater conveying means leading through the said heating and condensing chamber, and feed-water conveying means leading' into the said water-chamber, substantially as described.

3. The combination with a double-acting pump, of an extension, having an inner heating and condensing spacc,an adjustable waterchamber on the said extension, having' waterconveying means leading thereto, and a spraying passage-way in open communication with the said heating and condensing space, and steam and hot-water conveying means leading into the extensions heating and condensing space, substantially as described.

WILLIAM TATE.

Witnesses: Y

JNO. A. GILMER, KARL SoARBoRoUGH. 

